McCain Launches Obama-Ayers Attack Ad

With less than four weeks until Election Day, John McCain has launched his most aggressive ad yet against Barack Obama, labeling him a dangerous candidate because of his association with former domestic terrorist William Ayers. Story here . .

Related: The problems with the Ayers attack /Chris Cillizza, Washington Post; The Obama-Ayers connection /Dick Morris, The Hill

Question: Will this have an effect on the polls that are now continuing to trend toward Barack Obama?